US3553052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Etching control device
Assignee: LOUIS A SCHOLZ
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Filing: 1965-10-24
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Granted: 1971-01-05
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Expires: 1985-10-24
Abstract
Abstract THIS INVENTION PERTAINS TO IMPROVEMENT IN CONTROLLERS FOR AUTOMATIC ETCHING MACHINES; FOR EXAMPLE, THOSE THAT ARE USED IN ETCHING PRINTED CIRCUITS, AND, MORE PARTICULARLY, FOR THE IMPROVEMENT IN CONTROLLERS COMPRISING USING A SEPARATELY WEB-CARRIED MONITOR TEST MATERIAL WITH MULTIPLE SAMPLING CAPABILITY.
Inventors
- 👤 Elmer Charles Jubb Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:09
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/02; H05K3/06; H05K3/068; C; C23; C23F; C23F1/00; C23F1/02; H05K1/00; H05K1/02; H05K1/0266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |